Lee Westwood feels he let European Ryder Cup captain Darren Clarke down as the US romped to victory in Hazeltine.
The 43-year-old failed to qualify automatically for the biennial event and had to rely on a captain's pick from his good friend Clarke.
He joined Martin Kaymer and rookie Thomas Pieters as the Northern Irishman's choices but failed to win a single point throughout the three days of competition.
Germany's Kaymer was equally disappointing, notching his only point in the singles after the Ryder Cup had already been won by the Americans.
In stark contrast, Belgium youngster Pieters was a revelation and secured four points in a superb display of match play golf.
Westwood's putting once again proved to be his Achilles heel as he missed a few short putts to hand victory to his opponents and, when asked if he felt he had let down his good friend Clarke, the Worksop-born ace concurred.
"Yeah, a little bit," he said. "I was a captain's pick and I would have liked to have performed well for him, but we sat down (afterwards) and chatted about it.
"He said 'What could I have done differently?' and I said I thought you did all you could. The American team did to us what we have been doing to them the last 20 years."